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Q: Can an integer be always an irrational number?

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No. An irrational number is one that is not a rational number. A rational number is once that equals one integer divided by another. So an irrational number cannot be represented by one integer divided by another integer, so it cannot be an integer!

No. The square root of an integer is always either an integer or an irrational number.

It can be written as a fraction, so it is rational. It is not an integer, whole number or irrational.

If you multiply or divide an irrational number - such as pi - by ANY rational number (except zero), you will ALWAYS get an irrational number.

No. In fact, no odd integer is irrational. They are all rational.

No integer is irrational.

Unless the integer is fractional it is not an irrational number.

No integer is an irrational number; all integers are rational.

-2.5 is not an integer and it's not irrational.

There is no irrational number that is also an integer.

No integer is an irrational number. An irrational number is a number that cannot be represented as an integer or a fraction.All integers which are whole numbers are rational numbers.

The square root of 27 is an irrational number

Irrational. The square root of a positive integer is either an integer, or an irrational number.

Any type of fraction is always a rational number.

Irrational. The square root of a positive integer is either an integer (that is, if the integer is a perfect square), or an irrational number.

It is an integer. All integers are rational but not irrational. All rational and irrational numbers are real numbers.

No. The square root of an integer is either an integer, or an irrational number.

irrational

It is a natural number and an integer.

The square root of 61 is an irrational number

2 times pi is not an integer. Since Pi is an irrational number, 2 pi is also an irrational number.

It is real, rational, integer and a whole number.It is not an irrational number nor an interger - there is no such thing!

irrational

Irrational.

The square root of any positive integer can only be a WHOLE NUMBER or IRRATIONAL, so the square root of 7 is irrational.On the other hand, the sum of a rational and an irrational number is always irrational.